Switching system



May 1929. P. KANNENGIESSER ET AL 1,713,181

SWITCHING SYSTEM Filed March 30, 1928 Inventors 1 Paul Kannengiesser,Ernst, Ciasiorowski HWLQZZA/ Their Attorney Patented May 14, 1929.

UNITED STATES PATENT QFFICE.

PAUL KANNEIQ'GIESSER, OF BEBLEN-PA1KOW, AND ERNST GAii'lOROwsKI, {)TiHERME- DQRF, GERMANY, ASSiGNGRS TO GENERAL ELECTRIC COMPANY, AOGRPORATION OF NEW YORK.

SVJITC'T-EING SYSTEI I.

Application filed March 38, 1928, Serial No. 266,040, and in Thisinvention relates to an arrangement of switching connections whereby itis pos sible, even with more than two collector rail or feeder terns toconnect any two teins by means of'a single coupling switch.

This is attained in accordance with the invention by providing a numberof separating switches in groups in front of and behind a couplingswitch, the number of separating switches in each group being one lessthan the number of feeder systems.

in the accompanying drawing, Fig. 1 a diagrammatic representation of aswitching system embodying this invent on, while Fig. 2 is a viewsimilar to Fig. 1 showing a greater number of feeder systems.

Referring to the drawing, in Fig. 1 the invention is shown as applied tothree collector rail or feeder systems 1, 2, and Separating switches =1,5, G and 7 are provided, these separating switches being arranged in twogroups of two switches each. The separating switches 42 and 5 form onegroup which lies in front of a coupling switch 8, shown as a circuitbreaker, and the separating switches 6 and 7 form the other group whichlies behind the coupling switch 8. The switches 41 and 5 control anelectrical connection from one side of the coupling switch 8 to thefeeder system 1 and 2, the switch 1 controlling the connection with thefeeder system 1 and the switch 5 controlling the connection. with thefeeder system 2. in a similar manner the switches (3 and 7 control anelectrical connection from the opposite side of the switch 8 to thefeeder systems 2 and 3, the switch (3 controlling the connection withthe feeder system 2 and the switch 7 controlling the connection with thefeeder system 3. The switches el; and 5 are interlocked as, for example,by means of a mechanical connection 9 so that on y one switch can beclosed and'the switches G and 7 are similarly interlocked by means of amechanical connection 10.

In Fig. 2, four feeder systems 11, 12, 13 and 14 are shown and in thiscase the separating switches are divided into two groups of three each.The separating switches 15, 16 and 17 constituting one group, controlconnections respectively with the feeder systems 11, 12 and 13 on oneside of the coupling switch 18, while the separating switches 19, 20 and21 on the opposite side of the switch 18 control the connections withthe feeder systems 12, 13 and 14; respectively. As in the arrangement.of Fig. 1 the separating switches in each group are interlocked so thatonly one can be closed at any one time.

In both embodiments, by switching in the coupling switches 8 or 18 anytwo collector rail or feeder systems can be connected together inaccordance with which separating switches are closed. Thus for example,in accordance with the arrangement shown Fig. 1 the feeder systems 1 and2 are connected. together when the coupling switch 8 is closed, while inthe arrangement shown in Fig. 2 the feeder systems 11 and 12 areconnected together when the switch 18 is closed.

The coupling switches 8 and 18 are preferably arranged to open and closethe circuit under power, wherea the separating switches may be simpledisconnecting switches not designed to open or close the circuit underpower. The system thus has the adyantage that any two of plurality offeedra' systems may be connected or disconnected and only a singleswitch need be provided which will open and close the circuit underpower.

lVhat we claim as no i and desire to secure by Letters Patent of theUnited States is:

1. An electric interconnecting switching system for a plurality offeeder systems comprising a coupling switch, two groups of disconnecting switches electrically connected to opposite sides of saidcoupling switch, electrical connections between said disconmwrt- 1E gswitches and selected feeder systems respectively so that any two ofsaid feeder systems may be interconnected through said coupling switchand an appropriate disconnecting switch of each group.

2.1111 electric interconnecting switching system for a plurality offeeder systems comprising a coupling switch, two groups of disconnectingswitches electrically connected to opposite sides of said couplingswitch, each group comprising one less switch than the number of feedersystems, and electrical connections between said disconnecting switchesand selected feeder systems respectively so that any two of said feedersystems may be intercoimected through said coupling switch and anappropriate disconnecting switch of each group.

3. An electric interconnecting switching system for a plurality offeeder systems comprising a coupling switch, two groups of disconnectingswitches electrically connected to opposite sides of said couplingswitch, each group comprising one less switch than the number of feedersystems, and electrical connections between said disconnecting switchesand selected feeder systems respectively so that any two of said feedersystems may be interconnected through said coupling switch and anappropriate disconnecting switchof each group, and interlocking means 10between the disconnecting switches in each group whereby only one of theswitches in each group can be closed at one time.

In witness whereof, we have hereunto set our hands this Hth day ofhIarch, 1928.

PAUL KANNENGIESSER. ERNST GASIOROVSKI.

